2 6 5 12 8 July 8, 2019 16 32 64 128 2 5 12 and 3 6 21 and 8 11 2 (- 3x 6 )+ 12 =- 5 2x 8 2 3t 6 3 4t )-( 5 8t 12 6 5 x 2 x 12 8
